Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 43Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 43

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Ignition Troubleshooting DANGERHIGH VOLTAGESHOCK HAZARD! Do not touch ignition components andor metal test probes while engine is running andor being "cranked"STAY CLEAR OF SPARK PLUG LEADSTo assure p